BOILER MAINTENANCE CHECK LIST
ANNUAL PRESEASON MAJOR MAINTENANCE
- Secure and drain boiler.
- Open fireside and water side for cleaning and inspection.
- Check heating surfaces and water side for: corrosion, pitting, scale, blisters, bulges, and soot.
- Inspect refractory.
- Clean water column sight glass.
- Clean fire inspection glass.
- Disassemble, clean and inspect low water cutoff control(s).
- Reassemble boiler and low water cutoff control(s) with new gaskets.
- Check blowdown valve packing and lubricate.
- Refill boiler.
- Perform hydrostatic test if required.
- Test safety/relief valves after start-up (full pressure test).
- Clean or replace fuel filters.
- Clean fuel nozzles.
- Clean Burner fan wheel and air dampers.
- Clean flames safeguard scanner.
- Clean and adjust ignition electrodes.
- Check all burner linkage for excessive wear.
- Tighten all linkage set screws.
- Lubricate motor and shaft bearings.
- Check gas valves against leakage (where test cocks are provided).
- Replace vacuum tubes (if used) in flames safeguard control.
- Clean contacts in program timer.
- Check operation of flame safeguard control.
- Check operation of modulating motor.
- Perform pilot turn down test.
- Check operation of low water cutoff and feed controls(s).
- Check settings and test all operating and limit controls.
SEASONAL START UP
- Review manufacturer’s recommendations for boiler and burner start-up.
- Check fuel supply
- Check auxiliary equipment operations.
- Inspect burner boiler and controls prior to start-up.
- Start burner, check operating controls. Test safety controls and pressure relief valve.
- Perform combustion test and adjust burner for maximum efficiency.
- Log all operating conditions.
- Review operating procedures and owner’s log with boiler operator.